<?php
/*
//<?xml version="1.0" encoding="UTF-8"?>
 * 
 */
header( 'Content-type: text/xml' );//Set header to XML.

echo  <<<HTML

<ChangedData xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
	<signal id="1">
		<changed>1</changed>
	</signal> 
	<signal id="2">
		<changed>1</changed>
	</signal>
</ChangedData>
HTML;
?>